.drag-block{
	width: 150px;
	height: 150px;
	background: #4a474e;
	border-radius: 5px;
	box-shadow: 0 0 5px 0 #222;
	margin-bottom: 20px;
	display: flex;
	justify-content: center;
	align-items: center;
	padding: 0 20px;
	box-sizing: border-box;
	position: relative;
	text-align: center;
	&::before{
		content: "";
		position: absolute;
		left: 0;
		top: 0;
		width: 100%;
		height: 100%;
		background-color: transparent;
		z-index: 2;
	}
	&-tip{
		position: absolute;
		left: 0;
		bottom: 0;
		width: 100%;
		height: 30px;
		line-height: 30px;
		text-align: center;
		color: var(--main-font-color);
		opacity: 0.5;
		background-color: rgba(0,0,0,0.2);
	}
}